Markel Brown scored 15 points, Michael Cobbins and Le'Bryan Nash added 10 apiece and No. 23 Oklahoma State beat Missouri State 62-42 on Saturday.
The Cowboys (7-1) scored 14 of the game's first 16 points.
After a dreadful first half, Missouri State (2-7) came out of the break hot and used a 10-0 run to claw back within 34-23 after Nathan Scheer's 3-pointer from the wing.
The Bears hit their first four shots and eight of their first 11 in the second half, but couldn't keep up the sharp shooting.
A turnover and three straight misses gave an opening for an 11-0 burst, and Cobbins' jumper with 8:09 left pushed the lead back to 53-31 and put it away.
Christian Kirk and Anthony Downing led Missouri State with eight points apiece.